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authorJohannes Berg <johannes.berg@intel.com>2017-04-12 10:43:49 +0200
committerJohannes Berg <johannes.berg@intel.com>2017-04-13 13:41:37 +0200
commitb0265024b8b5fb35d1e1a1da6be65399e33e122e (patch)
treea4e9c2969fbfc0a9f0aaf717aa3eec7691e40741 /include/net
parent30841f5cdeccd24c4a68b9df681b3ef11b0dda53 (diff)
downloadlinux-b0265024b8b5fb35d1e1a1da6be65399e33e122e.tar.gz
cfg80211: allow leaving MU-MIMO monitor configuration unchanged
When changing monitor parameters, not setting the MU-MIMO attributes
should mean that they're not changed - it's documented that to turn
the feature off it's necessary to set all-zero group membership and
an invalid follow-address. This isn't implemented.

Fix this by making the parameters pointers, stop reusing the macaddr
struct member, and documenting that NULL pointers mean unchanged.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/cfg80211.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 273b1dca0861..ba9348ee5327 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -370,13 +370,16 @@ static inline void wiphy_read_of_freq_limits(struct wiphy *wiphy)
  *	This feature is only fully supported by drivers that enable the
  *	%NL80211_FEATURE_MAC_ON_CREATE flag.  Others may support creating
  **	only p2p devices with specified MAC.
- * @vht_mumimo_groups: MU-MIMO groupID. used for monitoring only
- *	 packets belonging to that MU-MIMO groupID.
+ * @vht_mumimo_groups: MU-MIMO groupID, used for monitoring MU-MIMO packets
+ *	belonging to that MU-MIMO groupID; %NULL if not changed
+ * @vht_mumimo_follow_addr: MU-MIMO follow address, used for monitoring
+ *	MU-MIMO packets going to the specified station; %NULL if not changed
  */
 struct vif_params {
 	int use_4addr;
 	u8 macaddr[ETH_ALEN];
-	u8 vht_mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN];
+	const u8 *vht_mumimo_groups;
+	const u8 *vht_mumimo_follow_addr;
 };
 
 /**